• Karol P Budohoski, Kunal Raygor, Daniel A Tonetti, Kazim H Narsinh, Ethan A Winkler, Christopher Dowd, and Adib A Abla.
• Department of Neurosurgery, University of California San Francisco, San Francisco, California, USA; Department of Neurosurgery, University of Utah, Salt Lake City, Utah, USA. Electronic address: karol.budohoski@gmail.com.
• World Neurosurg. 2022 Sep 1; 165: 959995-99.

BackgroundIntraoperative angiography (IOA) has been shown to be a useful adjunct in surgical treatment of cerebral aneurysms. However, its use can be limited by hybrid operating room availability. On the other hand, the use of C-arm fluoroscopy can add challenges to IOA during navigation of the aortic arch and selection of the great vessels. We aimed to describe a simple method of IOA that can be applied during surgery of paraclinoid aneurysms and can be performed in a normal operating room without the need to navigate the aortic arch.MethodsIn patients undergoing surgery for paraclinoid aneurysms with need for cervical carotid artery exposure, IOA was performed using a single plane C-arm fluoroscopy unit after direct puncture of the carotid artery.ResultsFive patients were included: 2 with subarachnoid hemorrhage, 2 with unruptured aneurysm and history of subarachnoid hemorrhage, and 1 with unruptured aneurysm. There were 2 internal carotid blister aneurysms, 2 ophthalmic artery aneurysms, and 1 superior hypophyseal artery aneurysm. IOA was performed using direct carotid puncture through the neck incision required for proximal control. In all cases, intraoperative images were of sufficient quality to determine the completeness of aneurysm occlusion as well as parent and branching vessel patency. There were no postoperative infarctions and no complications related to IOA.ConclusionsIOA using direct carotid puncture can be performed in a standard operating room with the use of a C-arm, eliminating the need to catheterize the great vessels of the aortic arch.Copyright © 2022 Elsevier Inc. All rights reserved.

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